ASTM-D3268 2005

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D3268-91(2005) Standard Test Method for Separation and Collection of Particulate and Gaseous Fluorides in the Atmosphere (Sodium Bicarbonate-Coated Glass Tube and Particulate Filter Method)

Published By	Publication Date	Number of Pages
ASTM	2005	6

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Categories: 13.040.20 - Ambient atmospheres, ASTM

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Description

1.1 The sodium bicarbonate-coated glass tube and membrane filter method provides a means for the separation and collection of gaseous atmospheric forms of fluoride reactive with sodium bicarbonate and particulate forms of fluoride which are collected by a filter. The test method is applicable to 12-h sampling periods, collecting 1 to 500 g of gaseous fluoride at a 15 L/min [0.5 ft ³ /min] sampling rate or about 0.1 to 50 g/m ³ . The length of the sampling period can therefore be adjusted so that the amount of fluoride collected will fall within this range. The actual lower limit of the test method will depend upon the sensitivity of the analytical method employed and the quality of reagents used in tube preparation and analysis. It is recommended that the lower limit of detection should be considered as two times the standard deviation of the monthly arithmetic mean blank value. Any values greater than the blank by less than this amount should be reported as ‘blank value.’

1.2 The values stated in SI units are to be regarded as standard. The inch-pound units in brackets may be approximate.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Interferences Apparatus FIG. 1
3	FIG. 2
4	Reagents Procedure Preparation of Samples for Fluoride Analysis
5	Calculations FIG. 3
6	Precision and Bias (3) Keywords REFERENCES

Additional information

Standard Title	D3268-91(2005) Standard Test Method for Separation and Collection of Particulate and Gaseous Fluorides in the Atmosphere (Sodium Bicarbonate-Coated Glass Tube and Particulate Filter Method)
Published Code	ASTM
Publication Date	2005
Pages Count	6
ICS Codes	13.040.20 - Ambient atmospheres

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ASTM-D3268 2005

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